The Hot Zone

Antarctic ice sliding along bedrock to melt in warming sea

Scientists trying to map the melting of ice in Antarctica have come up with a discovery. Much of the ice flowing into the ocean is not the result of “deformation” of glaciers. Rather, the ice is sliding along bedrock. “That’s critical knowledge for predicting future sea level rise,” said Thomas Wagner, a NASA cryospheric program scientist in a press release. “It means that if we lose ice at the coasts from the warming ocean, we open the tap to massive amounts... [Read more]

Posted by Alison Hawkes on August 21, 2011 No Comments »
Category : The Oceans

Polar ice sheet melt largest source of sea level rise

Melting ice sheets from Greenland and Antarctica has long been tied to rising sea levels. But these two sources are outpacing all others — including mountain glaciers and ice caps — t0 become the dominant feature in raising the seas, according to a new study slated for publication this month in the journal Geophysical Research Letters. Part of the reason for the significance of these polar ice sheets is that the rate of melt is accelerating. Researchers at the University of California,... [Read more]

Posted by Alison Hawkes on March 9, 2011 No Comments »
Category : Earth Systems, The man made climate

Antarctic ice sheet may be more durable than thought

The stability of Antarctic ice has long concerned climate scientists. If the west Antarctic ice sheet’s base were to collapse, global sea levels could shoot up by five meters. But new research shows the ice could be a bit more tough than scientists thought. In a study published online last month in the geo-science journal Palaeogeograpy, Palaeoclimtology, Palaeoecology, University of Exeter-led geographer Christopher Fogwill and colleagues found that blue-ice moraines in West Antarctica fluctuated... [Read more]

Posted by Alison Hawkes on March 7, 2011 No Comments »
Category : Climates of the Past


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